MG 4 models built around 2022 fail their MOT about as often as similar cars the same age.
Key figure
11% of MOT tests on MG 4 models built around 2022 ended in a fail (retests included), against 11% for similar cars the same age.
Most common issue
The most common MOT issue on MG 4 models built around 2022 involves the tyres.
Before you view it
The MG 4's most common MOT issues, turned into things to ask about or look for.
Ask for the date and mileage of the last disc replacement; visually check for a deep wear lip and rust pitting on each disc.
Check tread depth across the full width on all four; uneven wear suggests alignment or suspension issues.
Listen for knocks over speed bumps and ask about recent control-arm or anti-roll-bar work.
Check the car’s number plate on MOT Wise to see its own MOT history and any recalls for its build years.
Park facing a wall at night and check the beam pattern is even and at the right height.
By build year
Use the build-year guide below to separate newer build years from older ones.
Find your 4's generation
Each card below is a different generation. Select your year and we'll highlight the match.
By age
This chart combines every MG 4 ever sold. It's good for the big picture. For one generation, scroll up to the build-year cards.
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs. Highest fail rate at 3 years old.
All generations of this model
These issues come from 3-year-old MG 4 models, every generation combined.
In order of the share of MOT tests that recorded each one
Tyre worn close to the legal limit or worn on the edge
Brake disc worn, pitted or scored, but not seriously weakened
Suspension arm pin or bush worn, but not moving too much
Tyre has a cut that does not reach the ply or cords
Headlamp aimed too low or out of line
Based on 2,188 MOT tests on 3-year-old MG 4 models, every generation combined.
All generations of this model
The pairs seen most often when an MOT on 3-year-old MG 4 models notes problems with more than one part of the car.
Both were noted at the same test. That doesn't mean one caused the other.
Across 352 MOT tests on MG 4 cars built around 2022 (3 years old) where more than one part of the car was noted.
Still registered
How many of these are still registered in the UK, and what's been recalled across the model.
Not enough registration data to show this for the MG 4.
The share still registered can reflect demand, the cost of repairs, exports, write-offs and how owners use the car. It isn't proof of how long the car lasts mechanically.
1 MG 4 recall covers cars built in these years.
Top concerns
For the exact car, check GOV.UK's recall checker with the number plate.
Like-for-like
Same body type, tested at the same age
Lower fail rate: 8.7%, against 11.1% for the MG 4, both built around 2022.
2 critical recall campaigns matching this model/build period.
4,967 MOT tests on cars built around 2022
Same body type, tested at the same age
Lower fail rate: 8.7%, against 11.1% for the MG 4, both built around 2022.
4 critical recall campaigns matching this model/build period.
4,970 MOT tests on cars built around 2022
Same body type, tested at the same age
No clear edge over the MG 4 on these figures.
30,406 MOT tests on cars built around 2022
Same body type, tested at the same age
No clear edge over the MG 4 on these figures.
4 critical recall campaigns matching this model/build period.
8,054 MOT tests on cars built around 2022
Common questions
Built around 2022 (3 years old), the MG 4 across all generations combined fails MOTs at about the rate typical for this age. This is based on 2,188 3-year-old MOT tests from DVSA data. Each retest counts as a test.
